Clue

Planning ahead

Thinking three moves out. Before a dungeon, write down what you expect to need. Compare after.

Reading people

Spotting the habit before the move. Spend a whole round just watching your opponent. Do not try to win it. Name their habit.

Judging risk

When to push, when to bank it. Play one session all-in: every risk, every shortcut. Then one session all-safe. Compare scores.